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LPC2000ϵARM洢飨MAM

2015-3-23 09:10| ༭:繤ѧϰ| 鿴: 3198| : 0

ժҪ: LPC2114/2124/2210/2212/2214΢ARMں˹Ƶ60MHzʱִһָԼΪ17nsFlash洢ķҪ50nsƵ20MHzFlashӰARMں˷ЧΪ ...
     LPC2114/2124/2210/2212/2214΢ARMں˹Ƶ60MHzʱִһָԼΪ17nsFlash洢ķҪ50nsƵ20MHzFlashӰARMں˷ЧΪָܽڲFlash洢ЧٵȡARMںƲһ洢飨MAM
MAMṹ
     洢Ĵ
     MAMƼĴ(MAMCR)
     MAMCR[1:0]MAMģʽϵ±
     洢Ĵ
     MAMʱĴ(MAMTIM)
      MAMTIM[2:0]ʹöٸCCLKڷFlash洢ԵMAMʱʹƥ䴦Ƶϵ±
      Ϊ1CCLkʱʵϹرMAMԿѡMAMģʽԹĽŻ
      ע⣺ȷ趨ᵼĴ
     MAMʹҪ
     ıMAMʱֵʱȽMAMCRΪ0رMAMȻֵдMAMTIMҪIJģʽĶӦֵ12дMAMCRٴδMAM
     ڵ20MHzϵͳʱMAMTIM趨Ϊ001Flashʱ趨Ϊ1CCLK 20MHz40MHz֮ϵͳʱ齫Flashʱ趨Ϊ2CCLK40MHzϵͳʱʹ3CCLK
    
     ⲿ洢
     EMC֧4õĴ洢ÿ洢߿ȿΪ81632λͬһ洢ͬ
     ÿ洢֧16MBѰַռ
     ֽ֧ڶλȡ
     ַA[23:0]еַλA[25:24]4洢루CS[3:0]
     ⲿ洢߽ӿ
     ӿ
     ЩP1P2P3GPIOܸʹⲿǰҪȷPINSEL2ĴӲ϶BOOT1:0趨λʱ΢ԶʼPINSEL2ֽڳʼPINSEL2ֻƬFLASHеϵͳ
     ⲿ洢ʵͲΣ
      һȴ״̬洢Ч
      ⲿ洢дʵͲΣ

LPC2000ϵARM洢飨MAM˻:

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